1. Machining processes First year Production Engineering Department Methods Of Holding WorkPiece Eslam Bahaa Saleh Faculty Of Engineering, Alex Univ. 1

2. WP Clamping Method: Holding a W.P To an engine lathe depends mainly upon the geometrical features of the WP. 2

4. The Mandrel is pushed inside the WP till it is fixed.

5. We use a Straight Mandrel.

6. We fix the W.P to the mandrel using a screw and nut. Tapered Mandrel Straight Mandrel

7. WP Clamping Method: 4

9. We Hold it using “Between Centers” Method. 3-Jaw Chuck “Between Centers” Method. Collets

10. WP Clamping Method: 6

12. We use a face plate.

13. We use it for any W.P with long regular shape ex: triangle or squared WPs.4-Jaw Chuck

14. WP Clamping Method: 8

16. WP Clamping Method: 11 Thank You! Eslam Bahaa Abd-Aziz Saleh Production Engineering 1st Year